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Geometric effect of angle of repose revisited

机译:休止角的几何效应

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摘要

We report on a universal pattern observed in the collapse dynamics of a sand heap. Collapse dynamics of a three-dimensional sand heap were studied through experiments and numerical simulations. A phenomenological law that describes the shape of a collapsed sand heap was found, we call this the geometric constitutive law of friction. The law is summarized as the linear relation between the fric-tional coefficient and the local horizontal curvature.
机译:我们报告了在沙堆坍塌动力学中观察到的普遍模式。通过实验和数值模拟研究了三维砂堆的倒塌动力学。发现了描述塌陷的沙堆形状的现象学定律,我们称其为摩擦的几何本构定律。该定律总结为摩擦系数与局部水平曲率之间的线性关系。

著录项

  • 来源
    《Granular matter》 |2014年第4期|441-447|共7页
  • 作者单位

    Institute for Research on Earth Evolution, Yokohama Institute for Earth Sciences, Japan Agency for Marine-Earth Science and Technology, Yokohama, Kanagawa, Japan;

    Institute for Research on Earth Evolution, Yokohama Institute for Earth Sciences, Japan Agency for Marine-Earth Science and Technology, Yokohama, Kanagawa, Japan;

    Institute for Research on Earth Evolution, Yokohama Institute for Earth Sciences, Japan Agency for Marine-Earth Science and Technology, Yokohama, Kanagawa, Japan;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Sand heap; Angle of repose; Geometry; Collapse;

    机译:沙堆;休止角;几何;坍方;

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